3,6-Dihydroxy-2,4,5,7-tetraiodo-4',5',6',7'-tetrachlorospiro[9H-xanthene-9,1'(3'H)-isobenzofuran]-3'-one, 4',5',6',7'-Tetrachloro-3,6-dihydroxy-2,4,5,7-tetraiodospiro[9H-xanthene-9,1'(3'H)-isobenzofuran]-3'-one, rose bengal B, 4,5,6,7-Tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one, Solvent Red 141, 2,4,5,7-Tetraiodo-3,6-dihydroxy-4',5',6',7'-tetrachlorospiro[9H-xanthene-9,1'(3'H)-isobenzofuran]-3'-one, BENGAL RED B, 2,4,5,7-tetraiodo-3',4',5',6'-tetrachlorofluorescein, 4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodo-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one, 4,5,6,7-tetrachloro-2',4',5',7'-tetraiodofluorescein